The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Apr. 25, 2023
Nok Corporation, Tokyo, JP;
Yusei Shinchi, Aso, JP;
Noriaki Sato, Aso, JP;
NOK CORPORATION, , JP;
Abstract
An annular gasket made of elastomer contacts with an inner peripheral surface of a hole in an outer member and an outer peripheral surface of an inner member to shut off an inner space of the outer member from an atmospheric space. The gasket includes a first wider portion, a second wider portion, a third wider portion, a first narrower portion, and a second narrower portion. The maximum distance between a first outer peripheral groove and the inner peripheral surface of the hole, the maximum distance between a second outer peripheral groove and the inner peripheral surface of the hole, the maximum distance between a first inner peripheral groove and the outer peripheral surface of the inner member, and the maximum distance between a second inner peripheral groove and the outer peripheral surface of the inner member are each at least 0.05 mm in a compressed state of the gasket.